Chinese Journal of Lasers, Volume. 18, Issue 8, 615(1991)
Multiple invariant optical pattern recognition using circular harmonic synthetic filter
A novel filter, circular harmonic synthetic filter, is presented to overcome the sensitivity of conventional matched spatial filter to geometrical dsitortions of the input object. The computer simulation and optical correlation experiments were made for the synthetic filter, and the results showed that the synthetic circular harmonic filter has stronger recognition capability for triple invariant optical patterns.
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[in Chinese], [in Chinese]. Multiple invariant optical pattern recognition using circular harmonic synthetic filter[J]. Chinese Journal of Lasers, 1991, 18(8): 615
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